基于生态安全格局的关中城市群生态空间结构优化布局

发布时间：2018-05-03 21:42

本文选题：城市群生态空间结构 + 生态安全格局　；参考：《地理研究》2017年03期

【摘要】：构建区域生态安全格局、优化城市群生态空间结构,有利于促进社会经济与生态环境的和谐发展。以中国西部关中城市群为例,在RS与GIS技术支持下,通过生态服务重要性与生态环境敏感性评价识别生态源地,并基于最小累积阻力模型构建区域生态安全格局,进而开展生态空间结构优化布局研究。结果表明:(1)生态保护源地面积共26191.19 km~2,占全区的47.51%;(2)除生态源地外,低、中、高水平安全格局区域分别占全区的39.14%、9.86%和3.49%;(3)源间廊道多呈南北走向且连通成网状的程度较低;(4)提出构建以"四带、三区、七组团、十廊道、多中心"为核心的"绿心廊道组团网络式"布局体系,优化关中城市群生态空间结构。本研究可为区域生态保护与城市群可持续发展提供参考与借鉴。
[Abstract]:Constructing the pattern of regional ecological security and optimizing the ecological spatial structure of urban agglomeration will promote the harmonious development of social economy and ecological environment. Taking Guanzhong urban agglomeration in western China as an example, with the support of RS and GIS technology, ecological sources are identified by evaluating the importance of ecological services and ecological environmental sensitivity, and the regional ecological security pattern is constructed based on the minimum cumulative resistance model. And then carry out the ecological spatial structure optimization layout research. The results showed that the area of ecological protection source area was 26191.19 km2, accounting for 47.51% of the whole area. The high level security pattern area accounts for 39.14% and 3.49% of the total area respectively.) the corridor between the sources is mostly north-south and connected into a network. (4) "four zones, three regions, seven groups, ten corridors" is proposed. The layout system of "Green Corridor" with multi-center as the core optimizes the ecological spatial structure of Guanzhong urban agglomeration. This study can provide reference for regional ecological protection and sustainable development of urban agglomeration.
【作者单位】：中国科学院地理科学与资源研究所陆地表层格局与模拟重点实验室;中国科学院大学;中国科学院地理科学与资源研究所区域可持续发展分析与模拟重点实验室;中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室;
【基金】：国家自然科学基金项目(41530751)
【分类号】：TU984;X321

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